What is the best suited structure for development teams in order to produce integrated increments?

Scaling Scrum, it can also be done in multiple teams. The task of the multiple teams is to create a product. Everyone takes their part with continuous updates on scrum meetings and development through a collaborative effort to improve their chosen product by exchange of ideas.

The team works on the same sprint planning each phase. If a team, however, had sprint backlogs they have to learn on how to work and improve it. Thus, they make an integrated increment in each sprint planning that they have.